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  <title>Document</title>
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  <script>
    // 需求：页面弹出对话框，输入名字和年龄，页面显示：大家好，我叫xxx，今年xx岁了
    let uname = prompt("请输入您的姓名：")
    let age = prompt("请输入您的年龄：")
    document.write(`大家好，我叫${uname}，我今年${age}岁了`)
  </script>
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